Acetylene-lamp.



A. L. HANSEN.

ACETYLENE LAMP. APPLICATION HLED SEPT. 3. ms.

Patented Feb. 25, 1919.

AUGIE L. HANSEN, or EVANS'IOIN, ILLINOIS, COMPANY, or CHICAGO, ILLINOI A-SSIGNOR 'IO J USTRITE MANUFACTURING S, A CORPORATION OF ILLINOIS.

.ACETYLENE-LAMP.

Specification of Ilette'rs Patent.

Patented Feb. 25, 1919.

Application filed September 3, 1918. Serial No. 252,298.

To all whom it may concern:

Be it known that I, AUGIE L. HANSEN, a citizen of the United States, and a resident of Evanston, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Acetylene- Lamps, of which the following is a specification. o

My invention relates to gas lamps and particularly to improved pyrophoric ignition mechanism therefor which is of special utility in connection with miners acetylene cap lamps.

The main object of the invention is to provide pyrophoric ignition mechanism whose location is such with reference to the gas tip that when operated to produce sparks breaking up of the otherwise thin solid gas stream will be accomplished in order to afford greater volume of gas for contact with the. sparks so that ignition of the lamp is assured. Another object of the invention is to provide such construction as will enable the ignition mechanism to be readily applied to existing types of lamps.

A lamp to which my improved sparking mechanism is applied is illustrated on the accompanying drawing, in which- Figure 1 is a front elevational view of the lamp, and

Fig. 2 is a sectional view on plane 22, Fig. 1.

The lamp shown is a miners cap lamp comprising the water container 5 and the de tachable carbid cup 6, the water tube 7 leading from the water container to the carbid cup and the flow being controlled by means of the valve stem 8 extending through the tube. The concave reflector 9 forms the front wall of the water container and the gas tube 10 communicates at its lower end with the carbid cup and extends at its upper end axially through the reflector and receives the gas tip 11 and the gas outlet 12. Close to and at one side of the tip the reflector has the opening 13 through which the barrel 14 is projected to extend into the water container. Threading into the front end of the barrel is the plug 15 which has the passageway 16 therethrough for the bar 17 whose upper surface is roughened or serrated. At the rear end of the bar is the head 18 between which and the plug 15 the compression spring 19 is confined, which spring tends to forcibly draw the bar back after outward shifting thereof. A link 20 has pivotal connection with the outer end of the bar and its otherend terminates in a ball 21', this link serving as a finger grip for pulling out the bar. A slot 22 extends vertically through the plug 15 from the top thereof and has its opposed sides concave to form a guideway for a cartridge 23 of pyrophoric material. A coiled spring 2 1 encircles the outer end of the gas tube 10, the end 25 of the spring being anchored against the underside of the plug and the upper end 26 of the spring extending through the slot. 22 to press downwardly on the cartridge to thereby yieldingly hold the cartridge against the serrated upper surface of the bar 17 so that when the bar is'shifted sparks willbeproduced. The barrel 14 is at an angleiwith the axisof the tip so that when the bar is drawn outwardly the incandescent particles torn from the pyrophoric cartridge will be projected toward the flame jet issuing from the tip along the axis of the reflector.

To draw the bar outwardly the link 20 is grasped between the thumb and finger as illustrated in Fig. 2, the thumb being then close to and in front of the tip so that the thin solid gas stream will, upon striking the thumb, be broken up and the gas deflected and dispersed laterally into the concave reflector space, the gas thus offering greater volume for ignition thereof by the sparks. Sparks generated upon shifting of the bar will therefore always encounter gas and the resulting flame transmitted to the tip. The bar can be either quickly pulled out to project the sparks or it can be drawn out and then suddenly released so that it will be quickly drawn back by the spring 19, the resulting sparks being then deflected laterally through the slot 22 into the gas. If the gas is not ignited when the bar is drawn out it will be ignited when the bar is jerked in. The smooth ball 21 enables a firm grip to be had on the link and the bar can be quickly released by withdrawing the pressure of the fingers on the link and ball.

The sparking mechanism is of simple construction and can be readily applied to the existing types of lamps.

I do not, of course, desire to be limited to the exact construction, arrangement and operation shown and described as changes and modifications are no doubt possible a position with which would still come within the scope of the invention.-

1 claim as follows):

l. The combination. with .a gas tip, of a barrel secured alongside thereof, a plug in the front end of said barrel adjacent the tip outlet, a serrated bar extending through said plug into said' barrel, said plug hav- 12., .111 all acetylene lamp, the combination with the g s generating means, a reflector, and a gas t p extending axially in the reflector; of a holder supported on the .re-

.flecta f adjacent said tip, a serrated bar shifitable through said holder, said holder .liiWiDP atransyerse pocket, a cartridge of spyropihoric material within said pocket and engagingsaid serrated .bar, ,means for pressingsaid cartridge against said bar, and 'a finger grip extension at the front end of said il 'asaid grip extension being in such reference to :the. tip. outlet Copies ofthis patent may be obtained -10:

five cents each, by addressing Washington, D. 0

that when grasped by the fingers'the gas stream will abut against the fingers and !be deflected ilaterally toward the spark stream resulting when said bar is shifted.

3. In an acetylene ininers lamp, the combination with a water container, carbid cup, a. reflector at one end of the water container, a gas tube connecting with the car-- bid cup and extending axially through the reflector wall, and a tip in said tube, of a barrel extending into the water container and projecting through said reflector adjacent said tip, a. plug .at the front end of said barrel, ,a serrated bar extending through said plug and into the barrel, a spring within the barrel for resisting outward shift of said bar, said plug vhaving a trans- .Verse pocket,

a cartridge of pyrophoricmaterial in said pocket, a spring pressing said cartridge against said'bar, and a finger gripaextension atthe outer end of said bar, said grip being in such position with reference to the tip outlet that When grasped by the fingers the gas stream will be projected against. the fingers and deflected laterally toward the stream of sparks caused by the shifting of said bar.

.In witness whereof, I hereunto subscribe my. name this 27th day of August, A. 71)., 19,18.

'AUGIE L. HANS-EN.

the,0omm1seioner of intent, 

